Electric switch



March 1,'1932. P. J. MCMANAMAN 1,847,407

ELECTRIC SWITCH Filed April 23. 1930 2 Sheets-Sheet l Flc-3.5

5.9 /Nv-VEN'TOR Pa-rmcK .KMP MANAMAN I ATTORNEY March l, 1932. P. J.MCMANAMAN 1,847,407

l ELECTRIC SWITCH Filed April 25. 1930 2 sheets-sheet 2 INVENTOR Rq-nmcwO.MMANAMAN ATTORNEY Patented Mar. l, 1932 f UNITED STATES PATRICK J.MCM'ANAMAN, 0F CLEVELAND, OHIO l ELECTRIC SWITCH Application flied April23,'

ated by the. brake lever and also independent- Y ly thereof, the latteroperation being effectedby tilting the foot of the driver to selectively1 close circuits connected to direction signals.

In its latter aspect the device embodies a plurality of pairs ofcircuits, a tilting or universally movable lever on which the pedal isimounted and by the movement of which any;`

selected pair of contacts can be closed, to light the correspondingsignal.

. One form of the invention is shown in the.

accompanying drawings, in which Fig. 1 is a top plan view of the foot.brake 2 and signal switch.

Fig. 2 is a plan view with the plates removed and showing the switch inneutral position. Y

Fig. 3 is the same as Fig. 2 except that the switch is shown makingcontact with points B and C which throws on all lights at once.

1, showing the switch in neutral position.

3 ino' the same contacts as shown in lFig. 3.

ig. 6 is the same as the above except that the pedal is tipped to theleft which makes the,

contact for the left hand lights only and signifies a left turn. y

Fig. 7 is a wiring diagram for the invention.

Referring to the drawings :l 3() is the floor of the machine beneathwhich the foot brake lever 31 is mounted. Adjacent to, and slightlyforward of the lever 31 is the switch pedal which consists of a'corrugated toot plate 32, screwed on the threaded end V33 of theshifting stem 34. The said stem is hollow as atv 35 into which a hollowpin 36 is fitted over Vthe compression spring 37, the pin 36 beingclosed at theV lower end and slightly tapered. When in the neutralposition the tapered end of the pin 36 rests in the depression 38 of thebottom of theswitch 5 box 39. The bali portion 4o of the Shifting .y arelit. Y L Y i 7 The shifting of the pedal 33 to the posi- Fig. 4 1s asection taken on line 4-4 of Fig.`

- fibre ring-54 on the right side thus pressing i930. semi No. 446,509.

stem 34`pivots in all directions between the upturned flange 41 of theupper plate 42 and the downturned flange 43 of the lowerv plate 44,`andthe lower plate 44 and the switch box 39'are fastened to the upper plate42 by bolts `liti 45 andnuts 46. yTheupper plate 42 rests on the topofthe 'floor board 30 and is bolted in p lace. Aspring47 is attached tothe under side of the floor `board'30'atone end, the other beingattached to the foot brake 31 by bolt 4,8. 00 A 'spring 49L isattachedtoy the bent late 50 which is also attached to the foot bra e 31by the bolt-.48, the other'end ofspring 49 being Vfastened throughaperture 51 inthe pin 52 which prot-rudes through the wall of the yswitch box 39, the head 53 of the pin 52 being Y-held in positionagainstA the inner wall of a fibre -ring 54.5The Vdepression of the footleverA expands the springs 47 and 49r drawing v the,fibresring`54forward `against the metal 70 contact spring 55 whichthereby contact at `each lend with .the contact points` B and C. Sowhen, thejbrake is applied the lamps (not shown) controlled 'by thecontactsB and C 75 tion shown :in-Fig. 5 swings the tilting stem .34upoutof .the depression38 in the switch Fig. 5 is a section the same asFig. 4 showbox 39 and against the head '53 of the pin 52 thusclosing thesame contacts as before ldey scribed..v By shifting the pedal 33 to theleft, the stem34alsolslips outpof the depression 38 and presses against`the inner wall of the back the bre ring untilthe left end of the contactspring 55 makes contactwith the point B thus lighting the left handsignal lights only. Byfshifting. to theA right the'V operation isreversed, and the right hand signal lights only are lighted by contactC.

The left hand signal lights are connected by the conductors 56 andterminal 57, 4while conductors 58 connect the right hand signal lightsand the terminal 59. The center lights of both devices are connectedVtogether by the conductors 60 and to the battery 61and to a dash boardswitch 62, the floor `switch described being used for the right and lefthand lights.

The Jfoot plate 32, having universal movenient by reason of its ball andsocket mounting, may be swung either way by tilting the ioot to closecontacts B or C selectively and thus light either right or left handtail or signal lights, or swung forwardly when the brake is applied, tolight both lamps. This provides an easy and convenient means .forcontrolling the lamps, leaving the hands of the driver free for otherpurposes.

I claim:

l. A switch comprising a casing, a pivoted pedal and its stem havingtilting movements in said casing in various directions at angles to eachother, pairs of contacts arranged around the outer wall of the casing,and means actuated by the tilting of the pedal to `selectively closesaid contacts, said means including a loose insulating lring shiftablein the casing.

2. A switch as in claim l, said reely'shiftable ring of insulatingmaterial being spaced from and extending around the stem and arranged topress said contact ymembers to- 7 gether.

3. A switch comprising a casing, a shiftable ring of insulating materialloosely mounted and slidable in various directions 0n the bottom of saidcasing, a plurality of pairs of contacts arranged around said ring,'andmeans to shift said ring laterally in various directions to pressselected contacts together.

4.-. A switch as in claim 3, said means 'includinga pedal actuated levermovable `in Avarious directions to shift therring accordingly.

5. A switch as in claim 3, in combination with 4a brake lever connectedto said ring Vto also shift the same.

6. In a switch, the combination of alca'sing having a depression in thebottom, `anda plurality of pairs of contacts 'around the same, anoperating lever having a ball Vjoint with thetop of the casing and aspring -pin 'atts lower end engaging in said depression, `said leverbeing tiltable in variousdirectiongand a shifting ring extendingaround'sa'id depression and between the lever and the contacts andactuated by tilting the lever to close `se- "lected pairs of contacts.

In testimony whereof, I do afiix fmy `signature.

PATRICK J. MCMANMAN.

